I assume you're working with razor engine. If so, don't do this:
<script type="text/javascript" src="D:\My Programs\FSLIndiaLatest\FSLIndiaLatest\Scripts\jquery.js"></script>
Instead, do this:
<script type="text/javascript" src="~/Scripts/jquery.js"></script>
EDIT
This applies to all your .js and .css files referenced by their absolute local paths. If ~/
feature doesn't work for you, try using relative paths: src="/Scripts/jquery.js"
All the files referenced in your html should be included in your project.
It may have worked for you before because you were accessing a simple local html page. If the html page is hosted on a server (as it is, when you're running an MVC 4 application), it cannot access local files.